Philadelphia (PA) Sunshine Hours by Month
When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Philadelphia, Pennsylvania, United States of America. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.
Monthly hours of sunshine
If you're visiting Philadelphia, timing is key. In July, you can enjoy up to 275 hours of sunshine, while the shorter days of December provide just 140 hours. The total annual amount of sun is 2500 hours.
Daily hours of sunshine
This means the city can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.2 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.7 hours of sunlight per day.
Average percent of sunshine
On average the sun shines 61% of the time during the day in August, the highest percentage of any month. December has the lowest percentage at 48%.
Philadelphia vs Major Cities: Sunshine Compared
Philadelphia enjoys an average of 2500 hours of sunshine annually. Let’s compare this with some popular tourist destinations:
In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.
In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 2520 hours of sunshine annually.
Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.
Related Climate Data for Philadelphia
August, Philadelphia’s wettest month, receives 130 mm (5.1 in) of rainfall and has a maximum daytime temperature of 30°C (86°F). During the driest month November you can expect a temperature of 13°C (55°F).
For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Philadelphia Precipitation page.
